Ion formation to the gas phase by laser ablation on a droplet beam

Droplet beam-laser ablation mass spectrometry has been developed for studies of molecules in a liquid after isolating them in the gas phase. A liquid droplet of an aqueous solution of NaI was introduced into a vacuum chamber, and its velocity and shape were obtained from stroboscopic images and a di...

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Bibliographic Details
Published in:Chemical physics letters 2006-03, Vol.420 (1), p.146-150
Main Authors: Kohno, Jun-ya, Toyama, Namiki, Kondow, Tamotsu
Format: Article
Language:English
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Summary:Droplet beam-laser ablation mass spectrometry has been developed for studies of molecules in a liquid after isolating them in the gas phase. A liquid droplet of an aqueous solution of NaI was introduced into a vacuum chamber, and its velocity and shape were obtained from stroboscopic images and a diffraction pattern of visible and UV lasers, respectively. The ions produced by irradiation of a UV laser onto the liquid droplet were almost identical to those produced from a liquid beam. The mechanism of ion formation is explained by the Coulomb-ejection model employed for ion ejection from the liquid beam.
ISSN:0009-2614
1873-4448
DOI:10.1016/j.cplett.2005.12.056